package com.mmall.util;

import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.IOException;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.Properties;

public class PropertiesUtil {

    private static Logger logger = LoggerFactory.getLogger(PropertiesUtil.class);

    private static Properties props;

//    public static void main(String[] args) {
//        Class.forName("com.mysql.jdbc.Driver");
//    }
    static {
        String fileName = "mmall.properties";
        props = new Properties();
        try {
            props.load(new InputStreamReader(PropertiesUtil.class.getClassLoader().getResourceAsStream(fileName), "UTF-8"));
        } catch (IOException e) {
//            e.printStackTrace();
            logger.error("配置文件读取异常", e);
        }
    }

    public static String getProperty(String key){
        String value = props.getProperty(key.trim());
        if(StringUtils.isBlank((value))){
            return null;
        }
        return value.trim();
    }

    public static String getProperty(String key, String defaultValue){
        String value = props.getProperty(key.trim());
        if(StringUtils.isBlank((value))){
            value = defaultValue;
        }
        return value.trim();
    }
//    {
//    }
//    public PropertiesUtil(){
//    }
}
